html body {
    font-family: Helvetica, Arial, "Source Han Sans CN", "Hiragino Sans GB", "Microsoft Yahei", "Microsoft Jhenghei", STHeiti, verdana, sans-serif;
    background-color: #f5f5f5;
    margin: 0px;
    padding: 8px 0px;
    width: 170px;
    overflow: hidden;
}

button {
    color: #666;
    cursor: pointer;
    text-align: center;
    border-radius: 2px;
    background-color: #fff;
    border: solid 1px #ddd;
    width: 150px;
    height: 30px;
    margin: 4px 10px;
    background-image: linear-gradient(to top, #f8f8f8, #fff);
    transition: .2s all;
    outline: none;
}

button.little {
    width: 60px;
}

button:hover {
    color: #fff;
    border: solid 1px #008bbc;
    background-image: linear-gradient(to top, #009cd6, #00aae0);
    box-shadow: rgba(255, 255, 255, 0.2) 0px 1px 0px 0px inset, 0 1px 1px #CCC;
}

button:active {
    color: #fff;
    border: solid 1px #0082b0;
    background-image: linear-gradient(to top, #00a6dc, #00bee7);
    box-shadow: inset 0 2px 4px 0px rgba(0, 0, 0, 0.15), 0 1px 2px 0px rgba(0, 0, 0, 0.05)
}

.red {
    color: red;
}

#video_id {
    color: #666666;
    outline: none;
    margin-left: 10px;
    margin-right: -10px;
    margin-top: 4px;
    height: 26px;
    float: left;
    width: 85px;
    font-size: 14px;
    border: solid 1px #ddd;
    border-right: transparent;
    border-top-left-radius: 2px;
    border-bottom-left-radius: 2px;
    text-indent: 0.3em;
}

#video_id:focus {
    box-shadow: inset 1px 1px 2px rgba(0, 0, 0, .15);
}

#go_video {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}
